Foreign Currency Translation - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items]
Cumulative foreign currency losses	$ 399.3		$ 399.3		$ 384.9
Cumulative inflation rate	100.00%		100.00%
Cumulative inflation period			3 years
Blue Chip Swap [Member]
Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items]
Foreign currency and other related gain (loss)			$ 0.9	$ 10.1
AR
Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items]
Foreign currency and other related gain (loss)			3.1	15.2
CNK [Member]
Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items]
Accumulated other comprehensive income (loss)	$ 392.8		392.8		363.9
Foreign currency and other related gain (loss)	(3.0)	$ (11.0)	(7.9)	(19.4)
CUSA [Member]
Financial Statement Line Items with Differences in Reported Amount and Reporting Currency Denominated Amounts [Line Items]
Accumulated other comprehensive income (loss)	395.6		395.6		$ 366.7
Foreign currency and other related gain (loss)	$ (3.0)	$ (11.0)	$ (7.9)	$ (19.4)